$ git clone -n https://src.fedoraproject.org/rpms/erlang-oauth2.git /var/lib/mock/f41-build-1682968-24255/root/chroot_tmpdir/scmroot/erlang-oauth2
Cloning into '/var/lib/mock/f41-build-1682968-24255/root/chroot_tmpdir/scmroot/erlang-oauth2'...
$ git fetch origin dc5a05ef6cd3ff0f01ce026c3ca2d58a8a82c350:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/erlang-oauth2
 * [new ref]         dc5a05ef6cd3ff0f01ce026c3ca2d58a8a82c350 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dc5a05e OAuth2 ver. 0.8.0